If you’ve ever built a model rocket, you’ll know there’s not a whole lot to them. Essentially it’s a cardboard tube, a plastic nosecone, some fins, and a little clip that will keep it ...

How small? Small enough to fit in a backpack: Estes is a storied company dating back to the 1950s, known for its model rockets for hobbyists. CPR reports that the tiny firm, which has estimated ...